// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package org.apache.impala;

import org.apache.hadoop.hive.ql.exec.UDF;
import org.apache.hadoop.io.IntWritable;

import java.lang.System;

public class JavaGcUdfTest extends UDF {
  public JavaGcUdfTest() {}

  public IntWritable evaluate(IntWritable a) {
    if (a == null) return null;
    gc();
    return new IntWritable(a.get());
  }

  private void gc() {
    for (int i = 0; i < 100; i++) {
      int[] gc_array = new int[100];
    }
    System.gc();
  }
}
